Steam-heated glue-pot



(No Model.)

1". N. HASTINGS.

STEAM HEAI'ED GLUB POT.

No. 519,950. Patented May 15, 1894..

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UNITED STATES PATENT OFFICE.

FRANK N. I'IASTINGS, OF MERIDEN, CONNECTICUT.

STEAM-H EATED GLU E-POT.

SPECIFICATION forming part of Letters Patent No. 519,950, dated May 15, 1894.

Application led October 30,1893. Serial No. 489.501. (No model.)

To a/ZZ whom it may concern: e

Be it known that I, FRANK N. lIAsT1Nes,of Meriden, in the county of New Haven and State of Connecticut, have invented a new Improvement in Steam-Heated Glue-Pots; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be afull, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent,in-

Figure l, a view in vertical section of one form which a glue-pot constructed in accordance with my invention may assume; Fig. 2, a reverse plan view of the device; Fig. 3, a view showing three of such glue-pots arranged upon a common steam-supply pipe.

My invention relates to an improvement in steam-heated glue-pots, the object being to avoid the necessity of removing the pot to refill the water-reservoir in which its lower portion is immersed.

With these ends in view, my invention consists in a steam-heated glue-pot having a passage between its water reservoir and its steam-chamber, and a valve controlling said passage, whereby the water-reservoir may be kept supplied ,with water by opening the said valve, when the pressure of steam in the steam-chamber will force the water of condensation therein through the passage into the water-reservoir.

My invention further consists in certain details of construction and combinations of parts as will be hereinafter described and pointed out in the claims.

As herein shown, the glue-pot proper A, is supported by an outwardly flaring ange a, formed at its upper edge, upon an inward ly extending tiange b, formed at the upper end of the cylindrical body B of the device, the said body having a false bottom B diaphragm, which, as shown, is cast integral with it, and which forms the bottom of the water-reservoir C, which occupies the main portion of the said body. The lower end of the body is internally threaded to receive a head D, having an externally threaded flange D', which screws into the bottom of the body, and forms a steam-chamber E under the false bottom B' thereof. A nut D2, formed on the outer face of the said head, provides means for screwing it into place,- and removing it, and a long bearing for a steam-pipe.

Within the bottom of the reservoir C, I form a boss or shoulder F, which is by preference cast integral with the body, and constructed with a horizontal valve-chamber F', leading from the outer face of the body through into the said reservoir, and with a short vertical steam-passage F2, opening at its lower end into the steam-chamber E and at its upper end intersecting the chamber F. A valve G, ot' any approved construction, fits into the chamber F', Aand normally closes the upper end of the passage F2. When, however, the valve is turned outward far enough, a continuous passage is formed from the steam-chamber into the water-reservoir, and if at `this time any water of condensation has accumulated in the steam-chamber, it will be forced by the pressure of steam therein, into the Water-reservoir. In this way the water-reservoir is kept supplied with water without removing the gluepot, and as water accumulates in the steamchamber fast enough to supply the water-reservoir, the care of the glue-pot is reduced to the minimum, for the user of it has only to turn the valve and let the water in from one compartment to the other.

In Fig. 3 of the drawings three glue-pots constructed in accordance with Fig. l are shown as applied to a steam-pipe H, common to them all, short steam-pipes I leading from the said pipe H into the nuts Dzof the heads D.

It is not necessary that the device have the form herein shown, although that is simple and cheap. If preferred, for instance, the steam-chamber might surround the water-reservoir, which is a well known construction. If preferred, also, the head D, may be brazed into thelower end of the body B. Then again, the particular construction of the valve and the arrangement of the valve-chamber and steam passage may be varied.

Although I have spoken of my improved device as a steam-heated glue pot, it is not to be confounded on .that account with that class of glue pots in which the glue pot itself is subjected to the action of steam only, for in my device the pot is immersed in the ordinary manner in a bath of water which is steamheated and renewed by the water condensed from the steam. I am aware, however, that IOO it is not broadly new to immerse a glue-pot in a bath of Water and heat that water by steam in such a manner that the water of condensation is added to it. I would therefore have it understood that I do not limit myself to the exact construction shown and described, but hold myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with a water-reservoir adapted to have a glue pot immersed in the water contained by it, of a steam-chamber located direct-ly below the water-chamber from which it is separated only by a diaphragm, a valve-chamber leading into the water reservoir, a steam-passage leading upward from the steam-chamber into the valve-chamber, and a valve located in the valve-chamber adapted to be operated from the outside of the Water-reservoir and normally closing the said passage, substantially as set forth, and whereby the water-reservoir may be kept supplied with water without disturbing the pot, by opening the said valve when the pressure of steam in the steam-chamber will force the water of condensation therein through the passage into the water-reservoir.

2. The combination with a cylindrical body having a false bottom and forming a waterreservoir yin which a glue pot is immersed, a head applied to the lower end of the body and forming a steam-chamber directly below the false bottom thereof, a valve-chamber leading from the outside ofthe body into the water-reservoir, a steam-passage leading from steam in the steam-chamber will force the wa- A ter of condensation therein-through the passage into the water reservoir.

3. The combination with a cylindrical body having a water-reservoir in which a glue-pot is suspended and immersed, `and having a false bottom, a hanged screw-threaded head applied to thelower end of the body and form# ing a steam-chamber below the false bottom thereof, a valve-chamber extending from the outer face of the bodyinto the water-reservoir, a passage leading from the steam-cham ber into the said valve-chamber, and a valve located in the valve-chamber, adapted to be operated from the outside of the said body, and normally closing the said steam-passage, substantially as set forth, and whereby the water in the water chamber may be renewed without disturbing the pot by opening the valve when the pressure of steam in the steamchamber Will force the Water of condensation therein through the passage into the Waterreservoir.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

FRANK N. HASTINGS,

Witnesses:

HOWARD WHITE, E. M. BALDWIN. 

